Detectionmediumtest

Sysmon Configuration Change

Detects a Sysmon configuration change, which could be the result of a legitimate reconfiguration or someone trying manipulate the configuration

Convert In Phoenix Studio

Open this Sigma rule in the converter with the YAML preloaded and ready for backend selection.

Launch
François HubautCreated Wed Jan 128ac03a65-6c84-4116-acad-dc1558ff7a77windows
Log Source
Windowssysmon
ProductWindows← raw: windows
Servicesysmon← raw: sysmon
Detection Logic
Detection Logic1 selector
detection:
    selection:
        EventID: 16
    # To avoid FP just add
    # filter:
    #      ConfigurationFileHash: 'SHA256=The_Hash_Of_Your_Valid_Config_XML'
    # condition: selection and not filter
    condition: selection
False Positives

Legitimate administrative action

Testing & Validation

Regression Tests

by SigmaHQ Team
Positive Detection Test1 matchevtx

Microsoft-Windows-Sysmon

MITRE ATT&CK
Rule Metadata
Rule ID
8ac03a65-6c84-4116-acad-dc1558ff7a77
Status
test
Level
medium
Type
Detection
Created
Wed Jan 12
Path
rules/windows/sysmon/sysmon_config_modification.yml
Raw Tags
attack.defense-evasion
View on GitHub